Ace, Fearless Rebel
From Doctor Who set
Ace, Fearless Rebel
Legendary Creature — Human Rebel
2/2
Nitro-9 — Whenever Ace attacks, you may sacrifice an artifact. When you do, put a +1/+1 counter on Ace, then it fights up to one target creature defending player controls.
Doctor's companion (You can have two commanders if the other is the Doctor.)
